/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.naming.resources;

import org.apache.naming.StringManager;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;

public class ClasspathURLStreamHandler extends URLStreamHandler {

	private static final StringManager sm =
			StringManager.getManager(Constants.Package);

	@Override
	protected URLConnection openConnection(URL u) throws IOException {
		String path = u.getPath();

		// Thread context class loader first
		URL classpathUrl = Thread.currentThread().getContextClassLoader().getResource(path);
		if (classpathUrl == null) {
			// This class's class loader if no joy with the tccl
			classpathUrl = ClasspathURLStreamHandler.class.getResource(path);
		}

		if (classpathUrl == null) {
			throw new FileNotFoundException(sm.getString("classpathUrlStreamHandler.notFound", u));
		}

		return classpathUrl.openConnection();
	}
}
